Leo, I'm not sure about the weather in your neck of the woods, but I've had to try several different flies and several presentations before I found the one they wanted. On one pond they wanted an caddis nymphon the drop after trying dries, and other nymphs. On a local lake, I couldn't find them except for 20 feet off of shore, and I had to give the woolly worm I was throwing a 30 second count so it was definitely on the bottom, and then pull it in. They are not in a hit anything mood around here.